Hydraulic Variable Valve Timing Actuator and Exhaust Camshaft Component Removal Note

CAUTION:

• Keep the timing chain pulled up during and after the work in which it has been set aside from the sprocket. If the chain falls down, it may disengage from the sprocket on the crankshaft side and deviate, leading to valve timing deviation.
• After servicing, always verify the valve timing.

1. Leave the timing chain as it is, which was suspended after electric variable valve timing actuator removal.
2. Temporarily install the cylinder head cover bolt to the position shown in the figure to use it for suspending the timing chain.
   Fig 1: Cylinder Head Cover Bolt

   Courtesy of MAZDA MOTORS CORP.
3. Loosen the exhaust-side camshaft cap bolts in two or three passes in the order shown in the figure, and remove the camshaft caps.
   Fig 2: Exhaust-Side Camshaft Cap Bolts Loosening Sequence

   Courtesy of MAZDA MOTORS CORP.
4. While setting the timing chain aside, remove the hydraulic variable valve timing actuator and the exhaust camshaft as a single unit.
   Fig 3: Removing Hydraulic Variable Valve Timing Actuator And Exhaust Camshaft As Single Unit

   Courtesy of MAZDA MOTORS CORP.
5. Pull up the timing chain and suspend it using a rope as shown in the figure.

Fig 4: Suspending Timing Chain Using Rope

Courtesy of MAZDA MOTORS CORP.